Duplex-control switch



1,621,781 5. A. HOGE DUPLEX CONTROL SWITCH March 22 1927.

Filed Dec. 13, 1924 PK Mm llllIl- =5 li c Patented Mar. 22, 1927.

PAT ENT OFFICE.

SMITH A. HUGE, OF RICES LANDING, PENNSYLVANIA.

DUPLEX-CONTROL SWITCH.

Application filedDecemcer 13, 1924.

This invention relates to a duplex control switch and while primarily intended for independently operating a pair of special automobile. lights positioned on respective sides of a motor vehicle and disposed at an angle to project the lights in diagonal directions on the right and left sides of the roadways to illuminate the latter to facilitate driving at night, it will be obvious that the device may be employed for any other purposes wherein it is found to be applicable.

Important objects of this invention are to provide a switch of the type stated, in a manner as hereinafter referred to, which may be attached to the cross arm of a steering wheel of a motor Vehicle permitting of its manipulation without necessitating the removal of the hand from its normal position on the steering wheel; which is simple in its construction and arrangement, strong, durable and efficient in its use, compact, positive in its action, and comparatively inexpensive to manufacture.

In the drawing forming a portion of this specification and wherein like numerals of reference designate corresponding parts throughout the several views 1' Figure 1 is a top plan View of my improved switch with the cover plate removed therefrom.

Figure 2 is a similar View with the cover plate mounted in position.

Figure 3 is a sectional view on line IIIIII, Figure 1.

Figure 4 is an enlarged detail View of the push plug.

Figure 5 is a diagrammatic View of the wiring arrangement used in connection with my improved switch.

Referring in detail to the drawing 1 denotes a casing including a bottom 2 and the side wall 3. The casing 1 is provided with a cover plate 4 secured in position by means of screws 5. The casing 1 is adapted to be fixed to a steering wheel cross arm 6 by a screw or in any other suitable manner and is positioned adjacent to the rim of the steering wheel to permit of the manipulation of the switch device without moving the hand from the normal driving position.

A pair of vertically disposed push plugs 8 and 9 are mounted in the casing 1 and extend through the respective apertures 10 in the casing bottom 2 and through the respective apertures 11 in the cover plate 4.

Each of the push plugs 8 and 9 is formed Serial NO. 755,630.

with an elongated vertically disposed slot 12, and a contact plate 13 is fixed in outer wall of the latter at theupper end thereof.

The inner face of the bottom 2 is formed.

with a vertically disposed boss 14. A hori- Zontally extending resilient conductor 15, provided with an attaching plate 16, is socured on the boss 14 by the screw 17 which extends through the attaching plate 16 and engages in the boss 14. The resilient conductor 15 is positioned vertically edgewise and the free ends thereof are inserted in and extend through the slots 12 of respective push plugs 8 and 9.

The inner face of the cover plate 4 is formed with a depending boss 18, the lower face of which is positioned in close proximity to the top edge of the resilient conductor 15. The arrangement of the bosses 14 and 18 will maintain the resilient conductor 15 in the horizontal position and prevent the vertical shifting of the latter therebetween.

The push plugs 8 and 9 are vertically shiftable in the casing 1 to the distance permitted by the engagement of the free end of the resilient conductor 15 in the slots 12. When the push plugs 8 and 9 are depressed the resilient conductor 15 will contact with the contact plates 13 mounted in the slots 12, but when the push plugs 8 and 9 are shifted upwardly such contact with the plates 13 is broken. In Figure 3, of the drawing, the push plug 8 is shown in the elevated or disengaged position and the push plug 9 is shown in the depressed or engaged position. The push plugs 8 and 9 are maintained in the adjusted position by the resilient engagement of the conductor 15 therewith.

The resilient conductor 15 is formed with a centrally disposed vertically extending contact member 19 and a contact element 20 is fixed to the boss 14, as indicated at 21, in close proximity to but spaced from the contact member 19. A removable contact key 22 is inserted between the contact member 19 and the contact element 20 to establish contact therebetween. The cover plate 4 is provided with a slot 23 for the passage of the contact key 22 for engaging the contact member 19 and contact element 20 as stated The removal of the contact key 22 renders the switch inoperable and prevents its operation by unauthorized persons.

A conductor 24 connects the contact plate 13 of the push plug 8 with the lamp 25, and

a conductor 26 connects the contact plate 13 of the push plug 9 with the lamp 27. A conductor 28 connects the contact element 20 with the battery 29.

When the contact key 22 has been inserted in position, as herein stated, the manipulation of push plugs 8 and 9 are operable to control respective lamps 25 and 27 What I claim is:

In combination, a duplexswitch comprising a casing including a cover plate, a. pair of vertically shiftable push plugs mounted insaid casing, each of said pair of push plugs formed with an elongated longitudinally disposed slot, a contact plate fixed to the upper end of the outer Wall of each of slots, a re silient horizontally disposed conductor secured in said casing centrally of its length, the free ends of said conductor extending into'the respective slots of said pair of push plugs, said contact plates engaging said con- In testimony whereof I aflix my signature.

SMITH A. HOGE. 

